Roman Martoňák

Theory of Quantum Annealing of an Ising Spin Glass

Probing the lowest energy configuration of a complex system by quantum annealing was recently found to be more effective than its classical, thermal counterpart. By comparing classical and quantum Monte Carlo annealing protocols on the two-dimensional random Ising model (a prototype spin glass), we confirm the superiority of quantum annealing relative to classical annealing. We also propose a theory of quantum annealing based on a cascade of Landau-Zener tunneling events. For both classical and quantum annealing, the residual energy after annealing is inversely proportional to a power of the logarithm of the annealing time, but the quantum case has a larger power that makes it faster.

Superhard s p3 carbon allotropes with odd and even ring topologies

Four

Evolution of the structure of amorphous ice: from low-density amorphous through high-density amorphous to very high-density amorphous ice.

s{p}^{3}

Structural transformations in carbon under extreme pressure: Beyond diamond

carbon allotropes with six, eight, and 16 atoms per primitive cell have been derived using a combination of metadynamics simulations and topological scan. A chiral orthorhombic phase

Pressure-induced structural transformations in a medium-sized silicon nanocrystal by tight-binding molecular dynamics

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First principles molecular dynamics simulations of pressure-induced structural transformations in silicon clusters

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A new molecular-dynamics based approach for molecular crystal structure search

C{222}_{1}

A field-theoretical approach to simulation in the classical canonical and grand canonical ensemble

) was found to be harder than monoclinic M-carbon and shows excellent stability in the high-pressure range. A second orthorhombic phase of

Pressure-induced gap closing and metallization ofMoSe2andMoTe2

Cmmm

Phase behavior of protoenstatite at high pressure studied by atomistic simulations

symmetry, by